text: assert (1,2) == (1,2)
  
  x = (1,2)
  assert x[0] == 1
  
  y = (1,)
  assert y[0] == 1
  
  assert x + y == (1, 2, 1)
  
  assert x * 3 == (1, 2, 1, 2, 1, 2)
  # assert 3 * x == (1, 2, 1, 2, 1, 2)
  assert x * 0 == ()
  assert x * -1 == ()  # integers less than zero treated as 0
  
  assert y < x, "tuple __lt__ failed"
  assert x > y, "tuple __gt__ failed"
  